build: address clang-tidy errors

encode/base.cpp

@@ -7,4 +7,3 @@
  */
 
 #include "base.hpp"
-

encode/base.hpp

@@ -6,8 +6,7 @@
  * Copyright 2017 Danny Robson <danny@nerdcruft.net>
  */
 
-#ifndef CRUFT_UTIL_BASE64_HPP
-#define CRUFT_UTIL_BASE64_HPP
+#pragma once
 
 #include "../view.hpp"
 
@@ -94,6 +93,8 @@ namespace cruft::encode {
         '8', '9', 'A', 'B', 'C', 'D', 'E', 'F',
     };
 
+
+    //-------------------------------------------------------------------------
     template <>
     const uint8_t alphabet<16>::dec[256] = {
            0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
@@ -241,5 +242,3 @@ namespace cruft::encode {
         }
     };
 };
-
-#endif

expected.hpp

@@ -52,9 +52,14 @@ namespace cruft {
         using error_type = ErrorT;
 
         expected () = delete;
-        expected (expected &&rhs)
-        {
+        expected (expected &&rhs) noexcept (
+            std::is_nothrow_destructible_v<ValueT> &&
+            std::is_nothrow_destructible_v<ErrorT> &&
+            std::is_nothrow_move_constructible_v<ValueT> &&
+            std::is_nothrow_move_constructible_v<ErrorT>
+        ) {
             destroy ();
+
             if (rhs) {
                 m_valid = true;
                 ::new (&m_store.value) ValueT (std::move (rhs.value ()));

job/queue.hpp

@@ -66,13 +66,13 @@ namespace cruft::job {
             { ; }
 
 
-            cookie (cookie &&rhs):
+            cookie (cookie &&rhs) noexcept:
                 data (nullptr)
             {
                 std::swap (data, rhs.data);
             }
 
-            cookie& operator= (cookie &&rhs)
+            cookie& operator= (cookie &&rhs) noexcept
             {
                 std::swap (data, rhs.data);
                 return *this;

maths/fast.hpp

@@ -6,14 +6,13 @@
     * Copyright 2018 Danny Robson <danny@nerdcruft.net>
  */
 
-#ifndef CRUFT_UTIL_MATHS_FAST_HPP
-#define CRUFT_UTIL_MATHS_FAST_HPP
+#pragma once
 
 #include "../maths.hpp"
 #include "../debug/assert.hpp"
 
 namespace cruft::maths::fast {
-    float
+    constexpr float
     estrin (float t, float a, float b, float c, float d)
     {
         const auto t2 = t * t;
@@ -34,7 +33,7 @@ namespace cruft::maths::fast {
     //
     // using minimax(sin(x)-x, [|3,5,7,9|], ...) has higher accuracy, but
     // probably not enough to offset the extra multiplications.
-    float
+    constexpr float
     sin (float x) noexcept
     {
         CHECK_LT (x,  2 * pi<float>);
@@ -84,7 +83,7 @@ namespace cruft::maths::fast {
     //   P;
     //   dirtyinfnorm(P(x)-exp(x), [0;1]);
     //   plot(P(x)-exp(x),[0; 1]);
-    float
+    constexpr float
     exp (float x)
     {
         union {
@@ -109,5 +108,3 @@ namespace cruft::maths::fast {
         return frac * whole.f;
     }
 }
-
-#endif